<template>
	<view class="detail">
		<view class="fixbg" :style="{ 'background-image' : 'url('+ songDetail.al.picUrl +')' }"></view>
		<musichead :title="songDetail.name" :icon="true" color="white"></musichead>
		<view class="container" v-show="!isLoading">
			<scroll-view scroll-y="true">
				<view class="detail-play" @tap="handleToPlay">
					<image :src="songDetail.al.picUrl" :class="{ 'detail-play-run' : isPlayRotate }" mode=""></image>
					<text class="iconfont" :class="iconPlay"></text>
					<view></view>
				</view>
				<view class="detail-lyric">
					<view class="detail-lyric-wrap"
						:style="{ transform : 'translateY('+ - (lyricIndex -1) * 82 +'rpx)' }">
						<!-- <view class="detail-lyric-item">测试文字测试文字</view> -->
						<view class="detail-lyric-item" :class="{ active : lyricIndex == index }"
							v-for="(item,index) in songLyric" :key="index">{{ item.lyric }}</view>

					</view>
				</view>
				<view class="detail-like">
					<view class="detail-like-head">喜欢这首歌的人也听</view>
					<view class="detail-like-item" v-for="(item,index) in songSimi" :key="index"
						@tap="handleToSimi(item.id)">
						<view class="detail-like-img">
							<image :src="item.album.picUrl" mode=""></image>
						</view>
						<view class="detail-like-song">
							<view>{{ item.name }}</view>
							<view>
								<image v-if="item.privilege.flag > 60 && item.privilege.flag < 70"
									src="../../static/dujia.png" mode=""></image>
								<image v-if="item.privilege.maxbr == 999000" src="../../static/sq.png" mode=""></image>
								{{ item.album.artists[0].name }} - {{ item.name }}
							</view>
						</view>
						<text class="iconfont iconbofang"></text>
					</view>

				</view>
				<view class="detail-comment">
					<view class="detail-comment-head">精彩评论</view>
					<view class="detail-comment-item" v-for="(item,index) in songComment" :key="index">
						<view class="detail-comment-img">
							<image :src="item.user.avatarUrl" mode=""></image>
						</view>
						<view class="detail-comment-content">
							<view class="detail-comment-title">
								<view class="detail-comment-name">
									<view>{{ item.user.nickname }}</view>
									<view>{{ item.time | formatTime }}</view>
								</view>
								<view class="detail-comment-like">{{ item.likedCount | formatCount }} <text
										class="iconfont iconlike"></text></view>
							</view>
							<view class="detail-comment-text">{{ item.content }}</view>
						</view>
					</view>

				</view>
			</scroll-view>
		</view>
	</view>
</template>

<script>
	import musichead from '../../components/musicHead/musichead.vue'
	import '@/common/iconfont.css'
	import {
		songDetail,
		simiSong,
		commentMusic,
		lyric,
		songUrl
	} from '../../common/api.js'
	export default {
		data() {
			return {
				songDetail: {
					al: {
						picUrl: ''
					}
				},
				songSimi: [],
				songComment: [],
				songLyric: [],
				lyricIndex: 0,
				iconPlay: 'iconpause',
				isPlayRotate: true,
				isLoading: true
			}
		},
		components: {
			musichead
		},
		onLoad(options) {
			this.getMusic(options.songId);
		},
		//监听页面的卸载
		onUnload() {
			this.cancelLyricIndex();
			// #ifdef H5
			this.bgAudioMannager.destroy();
			// #endif
		},
		//监听页面的隐藏
		onHide() {
			this.cancelLyricIndex();
			// #ifdef H5
			this.bgAudioMannager.destroy();
			// #endif
		},
		methods: {
			getMusic(songId) {
				this.$store.commit('NEXT_ID', songId);
				uni.showLoading({
					title: '加载中...'
				});
				this.isLoading = true;
				//任务队列
				Promise.all([songDetail(songId), simiSong(songId), commentMusic(songId), lyric(songId), songUrl(songId)])
					.then((res) => {
						//获取歌曲详情
						if (res[0][1].data.code == '200') {
							this.songDetail = res[0][1].data.songs[0];
						}
						//获取相似音乐
						if (res[1][1].data.code == '200') {
							this.songSimi = res[1][1].data.songs;
						}
						//歌曲评论
						if (res[2][1].data.code == '200') {
							this.songComment = res[2][1].data.hotComments;
						}
						//获取歌词
						if (res[3][1].data.code == '200') {
							let lyric = res[3][1].data.lrc.lyric;
							let re = /\[([^\]]+)\]([^\[]+)/g;
							var result = [];
							lyric.replace(re, ($0, $1, $2) => {
								result.push({
									"time": this.formatTimeToSec($1),
									"lyric": $2
								});
							});
							this.songLyric = result;
						}
						//Vercel部署获取歌词
						if (res[4][1].data.code == '200') {
							// #ifdef MP-WEIXIN
							this.bgAudioMannager = uni.getBackgroundAudioManager();
							this.bgAudioMannager.title = this.songDetail.name;
							// #endif

							// #ifdef H5
							if (!this.bgAudioMannager) {
								this.bgAudioMannager = uni.createInnerAudioContext();
							}
							this.iconPlay = 'icon-bofang';
							this.isPlayRotate = false;
							// #endif

							this.bgAudioMannager.src = res[4][1].data.data[0].url || '';
							this.listenLyricIndex();
							this.bgAudioMannager.onPlay(() => {
								this.iconPlay = 'icon-zanting';
								this.isPlayRotate = true;
								this.listenLyricIndex();//开启定时器
							});
							this.bgAudioMannager.onPause(() => {
								this.iconPlay = 'icon-bofang';
								this.isPlayRotate = false;
								this.cancelLyricIndex();//关闭定时器
							});
							this.bgAudioMannager.onEnded(() => {
								this.getMusic(this.$store.state.nextId);
							});

						}

						this.isLoading = false;
						uni.hideLoading();
					}).catch((err) => {
						console.log(err)
					});
			},
			formatTimeToSec(value) {
				let arr = value.split(':');
				return (Number(arr[0] * 60) + Number(arr[1])).toFixed(1);
			},
			handleToPlay() {
				if (this.bgAudioMannager.paused) {
					this.bgAudioMannager.play();
				} else {
					this.bgAudioMannager.pause();
				}
			},
			listenLyricIndex() {
				clearInterval(this.timer);
				this.timer = setInterval(() => {
					//当前歌词
					for (var i = 0; i < this.songLyric.length; i++) {
						//处理最后一句歌词报错问题
						if (this.bgAudioMannager.currentTime > this.songLyric[this.songLyric.length - 1].time) {
							this.lyricIndex = this.songLyric.length - 1;//歌词走向停止等于最后一句歌词
							break;
						}
						//判断歌词走向
						if (this.bgAudioMannager.currentTime > this.songLyric[i].time && this.bgAudioMannager.currentTime < this.songLyric[i + 1].time) {
							this.lyricIndex = i;
						}
					}
				}, 500);
			},
			// 点击暂停的时候关闭定时器
			cancelLyricIndex() {
				clearInterval(this.timer);
			},
			//相似歌曲跳转
			handleToSimi(songId) {
				this.getMusic(songId);
			}
		}
	}
</script>

<style scoped>
	.detail-play {
		width: 580rpx;
		height: 580rpx;
		background: url(~@/static/disc.png);
		background-size: cover;
		margin: 214rpx auto 0 auto;
		position: relative;
	}

	.detail-play image {
		width: 370rpx;
		height: 370rpx;
		border-radius: 50%;
		position: absolute;
		left: 0;
		top: 0;
		right: 0;
		bottom: 0;
		margin: auto;
		animation: 10s linear move infinite;
		animation-play-state: paused;
	}

	.detail-play .detail-play-run {
		animation-play-state: running;
	}

	@keyframes move {
		from {
			transform: rotate(0deg);
		}

		to {
			transform: rotate(360deg);
		}
	}

	.detail-play text {
		width: 100rpx;
		height: 100rpx;
		font-size: 100rpx;
		color: white;
		position: absolute;
		left: 0;
		top: 0;
		right: 0;
		bottom: 0;
		margin: auto;
	}

	.detail-play view {
		width: 230rpx;
		height: 360rpx;
		background: url(~@/static/needle.png);
		position: absolute;
		left: 100rpx;
		right: 0;
		top: -200rpx;
		margin: auto;
		background-size: cover;
	}

	.detail-lyric {
		font-size: 32rpx;
		line-height: 82rpx;
		height: 246rpx;
		text-align: center;
		overflow: hidden;
		color: #6f6e73;
	}

	.detail-lyric-wrap {
		transition: .5s;
	}

	.detail-lyric-item {
		height: 82rpx;
	}

	.detail-lyric-item.active {
		color: white;
	}

	.detail-like {
		margin: 0 30rpx;
	}

	.detail-like-head {
		font-size: 36rpx;
		color: white;
		margin: 50rpx 0;
	}

	.detail-like-item {
		display: flex;
		align-items: center;
		margin-bottom: 28rpx;
	}

	.detail-like-img {
		width: 82rpx;
		height: 82rpx;
		border-radius: 20rpx;
		overflow: hidden;
		margin-right: 20rpx;
	}

	.detail-like-img image {
		width: 100%;
		height: 100%;
	}

	.detail-like-song {
		flex: 1;
		color: #c6c2bf;
	}

	.detail-like-song view:nth-child(1) {
		font-size: 28rpx;
		color: white;
		margin-bottom: 12rpx;
	}

	.detail-like-song view:nth-child(2) {
		font-size: 22rpx;
	}

	.detail-like-song image {
		width: 26rpx;
		height: 20rpx;
		margin-right: 10rpx;
	}

	.detail-like-item text {
		font-size: 50rpx;
		color: #c6c2bf;
	}

	.detail-comment {
		margin: 0 30rpx;
	}

	.detail-comment-head {
		font-size: 36rpx;
		color: white;
		margin: 50rpx 0;
	}

	.detail-comment-item {
		margin-bottom: 28rpx;
		display: flex;
	}

	.detail-comment-img {
		width: 64rpx;
		height: 64rpx;
		border-radius: 50%;
		overflow: hidden;
		margin-right: 18rpx;
	}

	.detail-comment-img image {
		width: 100%;
		height: 100%;
	}

	.detail-comment-content {
		flex: 1;
		color: #cbcacf;
	}

	.detail-comment-title {
		display: flex;
		justify-content: space-between;
	}

	.detail-comment-name {}

	.detail-comment-name view:nth-child(1) {
		font-size: 26rpx;
	}

	.detail-comment-name view:nth-child(2) {
		font-size: 20rpx;
	}

	.detail-comment-like {
		font-size: 28rpx;
	}

	.detail-comment-text {
		font-size: 28rpx;
		line-height: 40rpx;
		color: white;
		margin-top: 20rpx;
		border-bottom: 1px #e0e0e0 solid;
		padding-bottom: 40rpx;
	}
</style>
